N3_stm32/N3Drive/USER/ntc.c

#include "ntc.h"

u32 NTC_ADC_VALUE_SUM = 0;

float Get_Temperature(u16 ADC_VALUE)
{
	float Rp = 10000.0;
	float T2 = (273.15 + 25.0);
	float Bx = 3950.0;
	//float Ka = 273.15;
	float Rt = 0.0;
	float valta = 0.0;
	float R = 10000.0;
	float Tmotor = 0.0;
	valta = ADC_VALUE*3.3/4095;
	
	Rt = (R*valta)/(3.3-valta);
	
	   if(Rt>32116){
        Tmotor = 0;
    }
    else if(Rt>15652){

        Tmotor = -0.901*Rt/1000 + 28.381;

    }else if(Rt>6523){
        Tmotor = -2.5013*Rt/1000 + 50.657;

    }else if(Rt>2968){

        Tmotor = -6.3342*Rt/1000 + 73.203;

    }else if(Rt>1228){
        Tmotor = -16.002*Rt/1000 + 98.576;

    }else if(Rt > 657){
        Tmotor = -38.551*Rt/1000 + 124.83;

    }else if(Rt > 324){
        Tmotor = -81.812*Rt/1000 + 150.67;

    }else{
        Tmotor = 125;
    }
		return Tmotor;
	//return (1/( ( log(Rt/Rp) )/Bx+ (1/T2) )) - 272.65;
}